Calculating usage of localStorage space

Question

I am creating an app using the Bespin editor and HTML5\'s localStorage. It stores all files locally and helps with grammar, uses JSLint and some other parsers for CSS and HT

Answer 1

You can use the below line to accurately calculate this value and here is a jsfiddle for illustration of its use

alert(1024 * 1024 * 5 - escape(encodeURIComponent(JSON.stringify(localStorage))).length);